Home / 2,253.78-3,110.13-1,309.44

Finding the Fourth Proportional to 2,253.78, 3,110.13 and 1,309.44

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Solution

The fourth proportional to 2,253.78, 3,110.13 and 1,309.44 is: 1,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.78 : 3,110.13 = 1,309.44 : x
  2. Step 2: Convert to fraction form
    2,253.78/3,110.13 = 1,309.44/x
  3. Step 3: Cross multiply
    2,253.78x = 3,110.13 × 1,309.44
  4. Step 4: Simplify right side
    2,253.78x = 4,072,528.63
  5. Step 5: Solve for x
    x = 4,072,528.63/2,253.78
  6. Step 6: Final answer
    x = 1,806.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.